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What impact will wind have on the bridges when the opening spans are in their upright position?

April 26, 2017Bridges impact opening position spans upright wind

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What impact will wind have on the bridges when the opening spans are in their upright position?

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As with other similar structures such as high-rise buildings, the road and rail bridges are designed to comply with wind loadings as specified in the relevant Australian Standards and design codes. In addition to this, the impact of wind on the operation of the road and rail bridges is being managed through several measures. The operating machinery of the opening bridges is designed for maximum speeds of 145 km/h and an anemometer (device to measure wind speed and direction) will be mounted on the bridges to constantly measure wind direction and speed. These measurements will be relayed to the Traffic Management Centre at Norwood which will control the bridges’ opening regime. The bridges will not be opened during periods of extreme wind in order to protect the operating mechanism.